River-crossing guy cable liftable hanging cradle type net cage technique

Abstract

The invention relates to a river-crossing guy cable elevating and moving nacelle-type net-cage technique which comprises a net-cage and supporting bodies of the net-cage. The supporting bodies mainly comprise supporting columns arranged across river and a river-crossing guy cable positioned among the supporting bodies. The short frame of the net-cage and the river-crossing guy cable are commonly provided with a hoisting device and a left-right shifting device of the net-cage. The short frame of the net-cage is provided with a fulcra and the river-crossing guy cable is provided with a hanging beam. A lifting rope is connected between a capstan spindle and the hanging beam. The elevating and shifting device of the net-cage are provided with manual type, dynamic type and automatic elevating devices. The invention provides the device essential to develop multiple river aquacultures for the professional aquaculture farmers, is suitable for the operation needs and daily management of breed stocking and catching. Once water level rises, the fish and shrimp or other aquaculture products can not escape easily. When needed, the net-cage can be hung up and shifted near to the bank, thus not influencing the transit of ships in river and even not influencing the flood discharge in blood season.

Description

technical field [0001] The invention relates to the technology of aquaculture net cage, in particular to a technology of a hanging basket type net cage that can be moved up and down by a cable across a river. Background technique [0002] With the improvement of people's living standards, the demand for freshwater edible products is increasing. At present, freshwater edible products mainly come from fishing in rivers and lakes, aquaculture in ponds, or seine aquaculture in rivers and lakes. Pond farming affects the quality of fish and shrimp due to the lack of water flow, high breeding density, and susceptibility to pollution; although seine farming in rivers and lakes can make full use of the natural resources of rivers and lakes, it can also improve the quality of artificially farmed aquatic products. However, the seine used for seine farming cannot be moved up and down in the water. The biggest problem is that once the water level rises excessively and the seine is out o...

AI Technical Summary

Problems solved by technology

Pond farming affects the quality of fish and shrimp due to the lack of water flow, high breeding density, and susceptibility to pollution; although seine farming in rivers and lakes can make full use of the natural resources of rivers and lakes, it can also improve the quality of artificially farmed aquatic products. quality, but the seine used for seine farming cannot be moved up and down in the water, and the biggest problem is that once the water level rises excessively, the seine is out of control, and fish and shrimp will flee every day, causing farmers to suffer losses

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